For 25g, this small odor-blasting product sure is a tough one. It can last up to a month in usage. No need to pile on, just swipe a good amount to cover your entire pits. The formulation is moisturizing, doesn't lead to any odor after use (No strong fragrance!), and most importantly, it's Aluminum-free! It doesn't darken your underarms.Store in a cool,dry place or in wax paper, better yet, upcycle old jars or containers you can put this in.